<template>
    <div class="upload-container">
        <!--03 25 liuyx pingbi  -->
        <!-- not need -->

        <!-- <el-button
            icon="el-icon-upload"
            size="mini"
            :style="{ background: color, borderColor: color }"
            @click="dialogVisible = true"
            type="primary"
            >上传图片
        </el-button> -->
        <el-dialog append-to-body :visible.sync="dialogVisible">
            <el-upload
                class="editor-slide-upload"
                action="http://macro-oss.oss-cn-shenzhen.aliyuncs.com"
                :data="dataObj"
                :multiple="true"
                :file-list="fileList"
                :show-file-list="true"
                list-type="picture-card"
                :on-remove="handleRemove"
                :on-success="handleSuccess"
                :before-upload="beforeUpload"
            >
                <el-button size="small" type="primary">点击上传</el-button>
            </el-upload>
            <el-button @click="dialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="handleSubmit">确 定</el-button>
        </el-dialog>
    </div>
</template>

<script>
import { policy } from '@/api/oss';

export default {
    name: 'editorSlideUpload',
    props: {
        color: {
            type: String,
            default: '#1890ff'
        }
    },
    data() {
        return {
            dialogVisible: false,
            listObj: {},
            fileList: [],
            dataObj: {
                policy: '',
                signature: '',
                key: '',
                ossaccessKeyId: '',
                dir: '',
                host: ''
            }
        };
    },
    methods: {
        checkAllSuccess() {
            return Object.keys(this.listObj).every(item => this.listObj[item].hasSuccess);
        },
        handleSubmit() {
            const arr = Object.keys(this.listObj).map(v => this.listObj[v]);
            if (!this.checkAllSuccess()) {
                this.$message('请等待所有图片上传成功 或 出现了网络问题，请刷新页面重新上传！');
                return;
            }
            console.log(arr);
            this.$emit('successCBK', arr);
            this.listObj = {};
            this.fileList = [];
            this.dialogVisible = false;
        },
        handleSuccess(response, file) {
            const uid = file.uid;
            const objKeyArr = Object.keys(this.listObj);
            for (let i = 0, len = objKeyArr.length; i < len; i++) {
                if (this.listObj[objKeyArr[i]].uid === uid) {
                    this.listObj[objKeyArr[i]].url =
                        this.dataObj.host + '/' + this.dataObj.dir + '/' + file.name;
                    this.listObj[objKeyArr[i]].hasSuccess = true;
                    return;
                }
            }
        },
        handleRemove(file) {
            const uid = file.uid;
            const objKeyArr = Object.keys(this.listObj);
            for (let i = 0, len = objKeyArr.length; i < len; i++) {
                if (this.listObj[objKeyArr[i]].uid === uid) {
                    delete this.listObj[objKeyArr[i]];
                    return;
                }
            }
        },
        beforeUpload(file) {
            const _self = this;
            const fileName = file.uid;
            this.listObj[fileName] = {};
            return new Promise((resolve, reject) => {
                policy()
                    .then(response => {
                        _self.dataObj.policy = response.data.policy;
                        _self.dataObj.signature = response.data.signature;
                        _self.dataObj.ossaccessKeyId = response.data.accessKeyId;
                        _self.dataObj.key = response.data.dir + '/${filename}';
                        _self.dataObj.dir = response.data.dir;
                        _self.dataObj.host = response.data.host;
                        _self.listObj[fileName] = {
                            hasSuccess: false,
                            uid: file.uid,
                            width: this.width,
                            height: this.height
                        };
                        resolve(true);
                    })
                    .catch(err => {
                        console.log(err);
                        reject(false);
                    });
            });
        }
    }
};
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
.upload-container .editor-slide-upload {
    margin-bottom: 20px;
}
</style>
